Jumpsoles Jump Higher Shoes Plyometric Platforms

http://www.jumpusa.com/p14.htm Jumpsoles boost your vertical jump by using the plyometric principle. Jumpsoles build up fast twitch muscle fibers in your legs and increase your brain's ability to fire your jump explosively. Guaranteed to boost your vertical jump 5-10 inches or your money back. Try a pair now:

http://www.jumpusa.com/p14.htm

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